But the fact that in the course of certain solemn ceremonies a consumption of the totem, and a moderate one at that, is ritually required in no way implies that it was once an ordinary article of food. Quite on the contrary, the food that one eats at a mystical repast is essentially sacred, and consequently forbidden to the profane. As for the myths, a somewhat summary critical method is employed, if they are so readily given the value of historical documents. In general, their object is to interpret existing rites rather than to commemorate past events; they are an explanation of the present much more than a history. In this case, the traditions according to which the ancestors of the fabulous epoch ate their totem are in perfect accord with the beliefs and rites which are always in force. The old men and those who have attained a high religious dignity are freed from the restrictions under which ordinary men are placed:[372] they can eat the sacred thing because they are sacred themselves; this rule is in no way peculiar to totemism, but it is found in all the most diverse religions. Now the ancestral heroes were nearly gods. It is therefore still more natural that they should eat the sacred food;[373] but that is no reason why the same privilege should be awarded to the simple profane.[374] However, it is neither certain nor even probable that the prohibition was ever absolute. It seems to have always been suspended in case of necessity, as, for example, when a man is famished and has nothing else with which to nourish himself.[375] A stronger reason for this is found when the totem is a form of nourishment which a man cannot do without. Thus there are a great many tribes where water is a totem; a strict prohibition is manifestly impossible in this case. However, even here, the privilege granted is submitted to certain restrictions which greatly limit its use and which show clearly that it goes against a recognized principle. Among the Kaitish and the Warramunga, a man of this totem is not allowed to drink water freely; he may not take it up himself; he may receive it only from the hands of a third party who must belong to the phratry of which he is not a member.[376] The complexity of this procedure and the embarrassment which results from it are still another proof that access to the sacred thing is not free. This same rule is applied in certain central tribes every time that the totem is eaten, whether from necessity or any other cause. It should also be added that when this formality is not possible, that is, when a man is alone or with members of his own phratry only, he may, on necessity, do without an intermediary. It is clear that the prohibition is susceptible of various moderations.